Swathi N, Ramanathan Meena, Srikanth K, Bhavanani Ananda Balayogi
Department of Ophthalmology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth, Puducherry, India.
School of Yoga Therapy, Institute of Salutogenesis and Complementary Medicine, Sri Balaji Vidyapeeth, Puducherry, India.
Int J Yoga. 2023 Jan-Apr;16(1):34-37. doi: 10.4103/ijoy.ijoy_28_23. Epub 2023 Jul 10.
Intraocular pressure (IOP) increases during "sirasasana" and may be a risk factor for the progression of glaucoma. Other "head below heart" asanas may also cause increase in IOP.
To determine the change in IOP following three "head below the heart" postures-"meruasana", "viparithakarni," and "sarvangasana".
Prospective observational study conducted in a tertiary care hospital over 3 weeks.
Willing, regular yoga practitioners recruited by purposive sampling performed "meruasana", "viparithakarni," and "sarvangasana" in random order according to a 3 × 3 periods cross over study design after baseline measurement of IOP, blood pressure (BP), and pulse rate. Each asana was held for 30 s. Within 15-30 s of completion of asana, IOP, BP, and pulse rate were recorded. There was an interval of 30 min between the asanas.
Normality of data was tested using the Kolmogorov-Smirnov test. Repeated measures of ANOVA with Tukey-Kramer multiple comparisons was used to compare changes in IOP, BP, pulse rate following asana. ≤ 0.05 was accepted as statistically significant.
There were 33 participants with a mean age of 29.6 ± 10.5 years (95% confidence interval [CI]: 26.02, 33.18). The mean baseline IOP was 15.5 ± 3.4 mm Hg (95% CI: 14.34, 16.66) in the right eye and 16.7 ± 3.4 mm Hg (95% CI: 15.54, 17.86) in the left eye. IOP showed a significant reduction following each of the three asanas ( < 0.0001). However, neither pulse rate ( = 0.53) nor BP ( = 0.27) showed any change following the asanas.
"Meruasana," "viparithakarni," and "sarvangasana" when held for 30 s by healthy yoga practitioners resulted in post-asana drop in IOP with no significant change in pulse rate or BP.
在“头倒立”过程中眼内压（IOP）会升高，这可能是青光眼病情进展的一个危险因素。其他“头低于心脏”的体式也可能导致眼内压升高。
确定三种“头低于心脏”的体式——“山式变体”、“倒箭式”和“肩倒立式”后眼内压的变化。
在一家三级护理医院进行的为期3周的前瞻性观察研究。
通过目的抽样招募的愿意且规律练习瑜伽的人员，在对眼内压、血压（BP）和脉搏率进行基线测量后，按照3×3周期交叉研究设计，随机顺序进行“山式变体”、“倒箭式”和“肩倒立式”。每个体式保持30秒。在体式完成后15 - 30秒内，记录眼内压、血压和脉搏率。体式之间间隔30分钟。
使用柯尔莫哥洛夫 - 斯米尔诺夫检验来检验数据的正态性。采用重复测量方差分析和图基 - 克莱默多重比较来比较体式后眼内压、血压、脉搏率的变化。P≤0.05被认为具有统计学意义。
有33名参与者，平均年龄为29.6±10.5岁（95%置信区间[CI]：26.02，33.18）。右眼平均基线眼内压为15.5±3.4毫米汞柱（95%CI：14.34，16.66），左眼为16.7±3.4毫米汞柱（95%CI：15.54，17.86）。三种体式后眼内压均显著降低（P<0.0001）。然而，体式后脉搏率（P = 0.53）和血压（P = 0.27）均未显示出任何变化。
健康的瑜伽练习者将“山式变体”、“倒箭式”和“肩倒立式”保持30秒后，会导致体式后眼内压下降，而脉搏率和血压无显著变化。
